/*
 * Copyright 2008-2009 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.hasor.web.upload;
import javax.servlet.ReadListener;
import javax.servlet.ServletInputStream;
import java.io.IOException;
import java.io.InputStream;

class InnerInputStream extends ServletInputStream {
    private InputStream inputStream;

    public InnerInputStream(InputStream inputStream) {
        this.inputStream = inputStream;
    }

    @Override
    public boolean isFinished() {
        try {
            return inputStream.available() != 0;
        } catch (IOException e) {
            return false;
        }
    }

    @Override
    public boolean isReady() {
        return true;
    }

    @Override
    public void setReadListener(ReadListener readListener) {
    }

    @Override
    public int read() throws IOException {
        return inputStream.read();
    }
}
